Yumarni. Gunung Halimun Salak National Park Corridor Conservation for

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YUMARNI. Gunung Halimun Salak National Park Corridor Conservation for 

Javan Gibbon (Hylobates moloch Audebert 1797) Habitats. Under direction of 




The Gunung Halimun Salak National Park (GHSNP) corridor is an area 

connecting the Gunung Halimun and the Gunung Salak in the Gunung Halimun 

Salak National Park (GHSNP). The corridor functions as a habitat and a 

movement line for some important protected wildlife, such as javan gibbon 

(Hylobates moloch Audebert 1797). Javan gibbon is an endemic primate of Java 

Island. Its populations tend to decline and are scarcely distributed only in West 

and Central Java. The IUCN (International Union for Conservation of Nature) 

categorizes it as an endangered species. It is heavily dependent on its habitat 

condition that should provide appropriate trees for its food and bed. The local 

community’s high dependence on land and natural resources in the corridor has 

become a thread to the existence of Javan gibbon. The study is aimed at 

formulating the management of corridor models for conservation of the javan 

gibbon. It employs the Line Transect Methods for the data of javan gibbon’s 

population, the square line method for the javan gibbon’s habitat, and the use of 

Arc GIS 9.3 program for spatial modelling of javan gibbon’s habitat suitability in 

the National Park’s corridor, and the use of secondary data for the analisys of 

social economy of community. The research found nine groups of javan gibbon 

with 28 individuals in the corridor and nojavan gibbon in the research site of 

Cipanas. The group density of javan gibbon varied from 0.01 to 0.03 groups per 



, the population density was between 0.04 and 0.09 individual per km


. The 

average of highest INP values of trees was owned by rasamala (Altingia excelsa

at 144.26%, manii (Maesopsis eminii) at 64.65% and puspa (Schima wallichii) at 

60.90%. The highest INP values for young trees were of kisireum (Syzygium 

rostratum) 79.02%, manii (73.68%), and huru hiris (Litsea brachystachya

62.69%, while those for sapling were of manii (88.58%), kopinango (Nyssa sp.) 

81.12%, and mara bereum (Macaranga triloba) 63.53%, for seedling level of 

batarua (Quercus gemiliflorus) 83.50%, manii (72.42%), and pasang (Quercus 

oldocarpa) 44.39%. For the habitat suitability, all groups of javan gibbon were 

found in the suitable class of habitat and nojavan gibbon found in the highly 

suitable and unsuitable habitat. There were estimation 28,608 people living in the 

corridor at 2020. most of them (76.58%) were at low level education (elementary 

and middle school); 52.64% were at 19 to 59 years of age; 63.29% were farmers; 

83.4% held land less than 0.25 hectares; and 86.7% had monthly family income 

lower than Rp 74,000,-/capyta/year. 


Keywords: conservation, corridor, national park, habitat, javan gibbon. 






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